/**
 * 
 */
package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.File;
import java.io.FileOutputStream ;
import java.io.FileInputStream;
import java.io.RandomAccessFile;
import java.io.InputStream;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.util.*;
import client.*;
import pojo.*;

/**
 * @author peter
 * @date   2010-5-7
 */
public class GraphMsServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public GraphMsServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		HttpSession session=request.getSession();
		String graph=request.getParameter("graph");
	     if(graph!=null)
	     {
	       
	       PaintClient pc=new PaintClient();
	    //  ChatClient cc=new ChatClient();
		   String username=(String)request.getSession().getAttribute("username");//用户名
//			System.out.println("username: "+username);
			String receiver=request.getParameter("receiver");//接收者
			int visiable=-1;//密聊还是私聊标志
			
			if(receiver==null||receiver.equals("")||receiver.equals("所有人"))//群聊
			{
//				System.out.println("群聊");
				Message ms= new Message(username,"聊天室1",graph);
				pc.graphMessage(ms);
				System.out.println("send graph message: "+graph);
			//	cc.talkToAll(ms);
			}
	     }
	      
		out.println("Success");
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");////可能需要修改设置
		PrintWriter out = response.getWriter();
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		

		out
				.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the POST method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
